Abstract: A light-emitting device includes first and second light-emitting elements, upper submounts, and a lower submount. The upper submounts include a first submount having a first upper surface and a first lateral surface located on a same side as an emission end surface of the first light-emitting element, and a second submount having a second upper surface and a second lateral surface located on a same side as an emission end surface of the second light-emitting element. In a top plan view, the first lateral surface is located forward relative to the second lateral surface, and the emission end surface of the first light-emitting element is located forward relative to the emission end surface of the second light-emitting element. At least a portion of the first lateral surface is protruded forward relative to an edge along which an upper surface and a lateral surface of the lower submount meet.

Abstract: A light emitting device includes semiconductor laser elements, a frame part, a light-reflective member, a step part, metal films, wires, and a first protective element. The frame part surrounds a bottom surface on which the semiconductor laser elements are disposed. The light-reflective member is disposed on the bottom surface inside of a frame formed by the frame part. The step part is formed along a second inner lateral surface of the frame part, and disposed inside of the frame. The metal films are provided on an upper surface of the step part. The wires electrically connect the semiconductor laser elements respectively to the metal films. The first protective element is disposed on the upper surface of the step part and on a light traveling side of the laser light with respect to a plane including an emitting end surface of the first semiconductor laser element.

Abstract: A light emitting device includes a package, a cap fixed to the package, and at least one laser element. The cap includes a light-transmissive member having a lower surface facing the package and an upper surface opposite to the lower surface, and a light blocking film arranged on the lower surface of the light-transmissive member and having a shape which has at least one opening. The at least one laser element is disposed in a space bounded by the cap and the package at a position such that the at least one opening is irradiated by laser light emitted from the at least one laser element, at least a part of each of the at least one laser element being disposed in the at least one opening in the light blocking film in a top view.

Abstract: A light emitting device includes a light emitting element, a substrate, and a cap. The cap surrounds the light emitting element disposed on the substrate, and has a plurality of lateral portions including a first lateral portion having a first inner lateral surface through which the light emitted from a light emitting surface and traveling along an optical axis passes, and a second lateral portion having a second inner lateral surface different from the first inner lateral surface. The first inner lateral surface is inclined at a first inclination angle toward a side where the light emitting element is disposed with respect to a plane perpendicular to the mounting surface. The second inner lateral surface is inclined at a second inclination angle larger than the first inclination angle toward a side where the light emitting element is disposed with respect to a plane perpendicular to the mounting surface.

Abstract: A light-emitting device includes: a first light-emitting element including a first light-emission surface through which first light is emitted along a first optical axis; a second light-emitting element disposed apart from the first light-emitting element in a first direction that is perpendicular to the first optical axis, the second light-emitting element including a second light-emission surface through which second light is emitted along a second optical axis that is inclined with respect to the first optical axis in a second direction opposite to the first direction; and a third light-emitting element disposed apart from the first light-emitting element in the second direction, wherein the third light-emitting element includes a third light-emission surface through which third light is emitted along a third optical axis that is inclined with respect to the first optical axis in the first direction.

Abstract: A light emitting device includes a package defining a recess, a cap and at least one laser element. The cap is fixed to the package so as to cover the recess. The cap includes a light-transmissive member having a lower surface facing the package and an upper surface, the lower surface having a light extraction region, and a light blocking film arranged on the lower surface so as to avoid the light extraction region, the light blocking film including a mark representing prescribed information. The at least one laser element is disposed in a space bounded by the cap and the package at a prescribed position such that the light extraction region is irradiated by laser light emitted from the at least one laser element. At least a part of the at least one laser element overlaps at least a part of the light blocking film in a top view.

Abstract: A light emitting device includes: a semiconductor laser element configured to emit light in a first direction; a light-reflecting part having a light-reflecting surface; and a base member including: a recess, an upper surface surrounding the recess, and a first wiring part and a second wiring part provided on the upper surface. The semiconductor laser element and the light-reflecting part are located in the recess, the light-reflecting part positioned separated from the semiconductor laser element in the first direction in a top view. The first wiring part and the second wiring part are disposed at a position separated from the semiconductor laser element in a direction opposite to the first direction, the first wiring part and the second wiring part being arranged in a second direction perpendicular to the first direction.

Abstract: A light emitting device includes first to third semiconductor laser elements. Each of the semiconductor laser elements includes at least two emitters, and configured to emit red-color light, green-color light, or blue-color light. The mount member includes first to third conduction parts, each including a plurality of metal films including mounting regions that are aligned in a predetermined direction. The first to third semiconductor laser elements are respectively mounted on the first to third conduction parts of the mount member in a junction-down configuration.

Abstract: A light emitting device includes: a first light-emitting element; a second light-emitting element; a photodetector having a light-receiving surface at an upper face thereof, the light-receiving surface including: a first light-receiving region configured to receive a portion of light emitted from the first light-emitting element, and a second light-receiving region configured to receive a portion of light emitted from the second light-emitting element; and at least one lens member having: at least one incident surface on which a portion of the light emitted from the first light-emitting element and/or a portion of the light emitted from the second light-emitting element are incident, and at least one exiting surface through which the portion of the light incident on the incident surface is emitted. In a top view, the lens member is disposed so as to overlap the upper face of the photodetector in part or in whole.

Abstract: A light emitting device includes a base, a lid portion, a plurality of semiconductor laser elements, and a collimate lens. The lid portion is fixed to the base to define a hermetically sealed space by the lid portion and the base. The semiconductor laser elements are provided in the hermetically sealed space. The collimate lens has a non-lens portion fixed to the lid portion, and a plurality of lens portions connected and aligned along one direction and surrounded by the non-lens portion when viewed from a light extracting surface side of the collimate lens.

Abstract: A mount member includes first and second conduction parts. In the first conduction part, as seen in a top view, a length in a first direction parallel to an emission end surface of a first semiconductor laser element is smaller than a length in a second direction perpendicular to the emission end surface, and, in relation to the second direction, a first wiring region extends from a first mounting region in a direction from the light emission end surface to an opposite end surface. In relation to the second direction, a second conduction part extends further than the first conduction part in a direction from an emission end surface to an opposite end surface of a second semiconductor laser element, and from a region where the second conduction part extends further than the first conduction part, the second conduction part extends toward the first conduction part in the first direction.

Abstract: A polarization control member includes a first dichroic mirror having a first incident face, a second dichroic mirror joined to the first dichroic mirror, the second dichroic mirror having a second incident face, and a waveplate joined to the first incident face of the first dichroic mirror.

Abstract: A light emitting device includes: a first light emitting element having a light emitting surface; an optical member having a lower surface, a first reflecting surface inclined to the lower surface, transmitting part of a first light emitted from the light emitting surface, and reflecting the rest upward, and a second reflecting surface located farther from the light emitting surface than the first reflecting surface and reflecting part or all of the first light passing through the first reflecting surface; and a photodetector located below the optical member and having a top surface provided with one or a plurality of light receiving regions including a first light receiving region configured to receive the first light reflected by the second reflecting surface. In a top view, part or all of the first light receiving region overlaps part or all of the first reflecting surface.

Abstract: An optical apparatus includes a light emitting device and a substrate. The light emitting device includes a base including a main body portion containing a ceramic material and wire portions exposed from the main body portion on the lower surface of the base, a lid portion fixed to the base so that a hermetically sealed space is defined by the lid portion and the base, a first semiconductor laser element emitting blue light and provided in the hermetically sealed space, a second semiconductor laser element emitting red light and provided in the hermetically sealed space, a third semiconductor laser element emitting green light and provided in the hermetically sealed space, and a collimate lens arranged on paths of the blue light, the red light and the green light. The substrate includes first metallic films electrically connected with the base of the light emitting device via the wire portions.

Abstract: A light emitting device includes: a base member; a first semiconductor laser element disposed on an upper surface of the base member, wherein the first semiconductor laser element is configured to emit laser light from a first light emitting surface; a first light-reflecting member disposed on the upper surface of the base member, wherein the first light-reflecting member has a first light-reflecting surface configured to reflect the first laser light; a second semiconductor laser element disposed on the upper surface of the base member, wherein the second semiconductor laser element is configured to emit laser light from a second light emitting surface; and a second light-reflecting member disposed on the upper surface of the base member, wherein the second light-reflecting member has a second light-reflecting surface configured to reflect the second light.

Abstract: A light synthesizing device includes first and second light emitting devices, first and second polarization control members, and a synthesis member. Each of the first and second light emitting devices has at least one first semiconductor laser element and at least one second semiconductor laser element, and configured such that a polarization direction of exit light from the first semiconductor laser element is different from a polarization direction of exit light from the second semiconductor laser element. The first and second polarization control members are respectively configured to change the polarization directions of the exit lights from the first semiconductor laser element of the first light emitting device and the second semiconductor laser element of the second light emitting device. The synthesis member is configured to combine light exited from the first light emitting device and light exited from the second light emitting device.

Abstract: A light emitting device includes a base, a first semiconductor laser element, a second semiconductor laser element, a lens member, and a waveplate. The base has a bottom part. The first semiconductor laser element is disposed on the bottom part of the base. The second semiconductor laser element is disposed on the bottom part of the base. The second semiconductor laser element has a different polarization direction from a polarization direction of the first semiconductor laser element. The lens member is a member into which light beams from the first semiconductor element and the second semiconductor laser element enter. The waveplate is configured to change the polarization direction of light from the first semiconductor laser element.

Abstract: A light emitting device includes: a package having a light extraction face that has a light transmitting region; a first light emitting element disposed in the package and having an emission face configured to emit light that diverges; an optical member disposed in the package, wherein light emitting from the first light emitting element is incident on the optical member, and wherein the optical member is configured to reflect a portion of the incident light and to transmit a remainder of the incident light therethrough; and a photodetector disposed in the package and having a light receiving face configured to receive the light emitted from the first light emitting element and reflected by the optical member. The light emitted from the first light emitting element and transmitted through the optical member exits from the package through the light transmitting region.

Abstract: A light emitting device includes: one or more semiconductor laser elements; one or more light-reflecting parts, each having a light-reflecting surface configured to reflect laser light emitted from a corresponding one of the one or more semiconductor laser elements; and a fluorescent part having a light-receiving surface configured to be irradiated with the laser light reflected at the light-reflecting surface of each of the one or more light-reflecting parts. An irradiated region is formed on the light-reflecting surface when the light-reflecting surface is irradiated with the laser light, the irradiated region including a first end and a second end opposite the first end.

Abstract: A light emitting device includes a base having a bottom part, a first semiconductor laser element disposed on the bottom part of the base, and a first light reflecting member disposed on the bottom part of the base. The first light reflecting member has a light reflecting surface configured to reflect light emitted from the first semiconductor laser element. The light reflecting surface of the first light reflecting member is a curved surface configured such that, with respect to the major portion of the light emitted from the first semiconductor laser element, the beam divergence angle of the light reflected by the light reflecting surface is greater than zero and smaller than the beam divergence angle of the light irradiating the light reflecting surface.